42352543 has 4 divisors (see below), whose sum is σ = 42365560. Its totient is φ = 42339528.

The previous prime is 42352537. The next prime is 42352547. The reversal of 42352543 is 34525324.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 42352543 - 2⁵ = 42352511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42352547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3196 + ... + 9742.

It is an arithmetic number, because the mean of its divisors is an integer number (10591390).

Almost surely, 2^42352543 is an apocalyptic number.

42352543 is a deficient number, since it is larger than the sum of its proper divisors (13017).

42352543 is an equidigital number, since it uses as much as digits as its factorization.

42352543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13016.

The product of its digits is 14400, while the sum is 28.

The square root of 42352543 is about 6507.8831427738. The cubic root of 42352543 is about 348.5725343335.

Adding to 42352543 its reverse (34525324), we get a palindrome (76877867).

The spelling of 42352543 in words is "forty-two million, three hundred fifty-two thousand, five hundred forty-three".